Ground Penetrating Radar (GPR) systems - GSSI


SIR-30 system by GSSI

SIR® 30

  • Overview
  • Benefits
  • Specifications
  • SIR 30E

The SIR® 30 is the next generation high-performance multi-channel radar control unit. This system can collect up to eight channels of data simultaneously with uncompromised performance.

The SIR 30 offers advanced filters and display capabilities for real-time processing, including migration, surface positioning, signal floor tracking and adaptive background removal.

Ideal for high-speed data collection of: measuring pavement layer thickness, detection of cavities, airport runway assessment, detection of fouled/clean ballast and utility detection.

Typical Uses of the SIR 30 include:

  • Road structure assessment
  • Utility designation
  • Bridge deck assessment
  • Rail bed inspection

More information: SIR 30 Brochure

Flexible, Modular Design

  • Available in a two, four or eight channel configuration
  • Operate the control unit with a laptop computer or as a standalone system
  • Compatible with most GSSI antennas

Integrated System

  • Ideal for vehicle-mounted applications, supports AC or DC operation
  • Full internal GPS logging capability
  • Multiple mounting configurations

Deliver Results

  • High speed GPR data collection—capable of more than 5,792 scans/second, with four channels
  • USB and Ethernet ports for system flexibility
  • Up to 500 GB data storage
Antenna Support Compatible with all GSSI antennas
Number of Channels Records data from 1 to 4 hardware channels simultaneously; two 4 channel systems can be connected to form an 8 channel system
Data Storage Internal memory: 4 channel 500 GB Internal SSD
2 channel 250 GB Internal SSD
GPS data logged internally
Display Modes Linescan and O-scope.
In Linescan display, 256 color bins are used to represent the amplitude and polarity of the signal
Operational Modes External laptop, standalone with external monitor and keyboard or remote command set
Data Acquisition
Data Format RADAN® (.dzt)
Scan Rate Interval User-Selectable

Output Data Resolution: 32-bit

1-4 Channels @ 100 KHz PRF
Max Rate (scans/Sec)
256 326
512 178
1024 93
2048 48
4096 24
8192 12
16,384 8

1-4 Channels @ 800 KHz PRF
Max Rate (scans/Sec)
256 1449
512 990
1024 606
2048 341
4096 182
8192 94
16,384 48
Samples per Scan 256, 512, 1024, 2048, 4096, 8192, 16,384
Time Range 0-20,000 nanoseconds full scale, user-selectable
Gain: Manual adjustment from -42 to +126 dB.
Number of segments in gain curve is user-selectable from 1 to 8.
Standard Real-time Filters Linescan and O-scope.
Infinite Impulse Response (IIR) - Low and High Pass, vertical and horizontal
Finite Impulse Response (FIR) - Low and High Pass, vertical and horizontal
Advanced Real-time Filters Migration, Surface Position Tracking, Signal Floor Tracking, Adaptive Background Removal
External Marker Three different inputs/codes: Antenna, Front panel, Accessory connector
Automatic System Setups Linescan and O-scope.
Storage of an unlimited number of system setup files for different survey conditions and/or antenna deployment configurations
Operating Temperature -10°C to 50°C external (14°F to 122°F)
Power 260W max at 95-250VAC 50/60Hz with the AC supply or 30A max continuous at +10VDC to +28VDC
Transmit Rate Up to 800 KHz (International), US/Canada and CE rates depend on antenna model
Available Ports Antenna inputs (2 or 4), Survey wheel, Marker, DC power input, Serial RS232 (GPS port), Sync connector, Accessory connector, HDMI video, Ethernet to PC, 4 USB ports
Dimensions 17.7 x 13 x 5.1 in (45 x 33 x 13 cm)
Weight 18.5 lbs (8.4 kg)
Relative Humidity <95% non-condensing
Storage Temperature -40°C to 60°C

SIR® 30E

The SIR 30E is a modified version of our popular high-performance multi-channel control unit, the SIR 30. With an IP64 rating, it's designed for use in harsh environments. The SIR 30E can collect up to two channels of data simultaneously with uncompromised performance.

Ideal for high-speed data collection of: mining, tunnel inspection, utility designation, and transportation infrastructure.

More information: SIR 30E Brochure

GSSI SIR-30E system


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